What are the Best Corner Toilets For Small Bathrooms? 2018 Reviews & Buying Guide

Best Corner Toilet For Saving Space – 2017 Review

Corner toilet, triangle toilet, isosceles triangle toilet, three-corner square toilet, whatever you want to call it, writing an article about this type of toilet isn’t very high on my bucket list.

However, during a recent client visit, I found an annoying problem that some of the smaller houses face: Small bathrooms. I had to squeeze myself into the bathroom. 

Teacher in front of a blackboard

Me in the Future

Needless to say, the space in these smaller bathrooms were horrible, especially the knee space. I’m would say I’m a big dude, but wow. You wouldn’t believe what kind of position had to adapt so that I could do a number two.

Housing problem aside, let's hope I’m not going out of the bathroom industry and becoming a real estate agent…

What's The Solution To Small Bathrooms?

The solution to this space problem: Corner toilets. Also known as triangle toilet, these toilets have normal bowls; however, here comes the intriguing part - the tank of the toilet is in a triangular shape. The triangular tank can fit smoothly into any corner.

One important thing I want to point out here is that the corner toilet doesn’t “save” you precious space in the bathroom. The corner toilet uses your space WISELY.

I could do the maths and show you how it saves space, but just trust me on this. The main reason is that the tank is stuffed inside into the corner.

Sometimes, you can even go crazy to have a sink just towering above the bowl if you’re really fighting for space...

The 2 Best Corner Toilets Reviewed

Triangle toilets aren’t that common so there are very limited corner toilets I believe deserve to be on Flush Guide's list - we’re advocated of the best and only the best. Hence, today, our list is relatively short. Enjoy.




American Standard Titan Pro

  • Great for saving space
  • Strong flush capacity
  • Reasonable price
  • 10 year warranty

Type: Two-Piece

Bowl Type: Elongated

Water Use: 1.28 GPF

American Standard Cadet- 3

  • Great for saving space
  • Strong flushing power
  • Comfort seat height
  • EverClean surface - minimal cleaning

Type: Two-Piece

Bowl Type: Elongated

Water Use 1.6 GPF

If you’re looking for something that will save you space while providing great style and height, then you came to the right place.

The American Standard 2840.016 toilet with its triangle toilet tank will fit perfectly to any corner. Don’t worry if you’ve never installed a toilet yourself because installation is a breeze.

It has a great height, from floor to the bowl is 16 ½ inches, and with a toilet seat it totals 17 ¾ inches. This added height is higher than your regular toilet height which makes it great if you have back problems or if you have elderly in the house.

Flushing is what you expect. No adjustment is needed to guarantee your poo particles disappearing forever. It’s also very efficient with a 1.28 gallon per flush, meaning if you’ve been drinking a lot of protein shakes, it won’t be too costly making all those trips to the bathroom.

It’s a very simple, but functional toilet. Great for anyone just wants something simple, yet want to save space in the bathroom.

What We Like:

  • Triangle tank - Great for saving space
  • 3" Oversized flush valve - Strong flush capacity
  • Reasonable price
  • 10 year warranty

What We Don't Like:

  • Seat not included
  • Only one color option - Bone

Another great triangle toilet for any small bathroom.

Even though the triangular tank fits nicely in the corner of any bathroom, it will not be completely flush against the wall, however, it is very close and looks as if it was made for the room.

Although a single flush system, here’s a hack to get dual flush. Push the handle slightly to get a light flush (liquid waste), or push all the way down to get a heavier flush for the big ones.

The Cadet-3 triangle toilet is a gravity assist toilet that uses 1.6 GPF. The triangular tank holds enough water, more than the conventional 1.6 gallons of flush. The extra water in the tanks provides additional pressure for the normal flush so you can guarantee you will never see your droplets ever again.

All necessary parts are supplied (except the supply hose), so installation is fairly easy. No additional tools are required as it comes with what’s needed.

What We Like:

  • Triangle tank - Great for saving space
  • Strong flushing power
  • Comfort seat height - better pooping experience
  • EverClean surface to resist mold, mildew, and more - minimal cleaning

What We Don't Like:

  • Seat not included
  • Supply line not included
  • Not completely flush against the wall


You may wonder why you don’t see that many corner toilets in the U.S. The reason is simple: The installation of corner toilet pipe is different from a traditional toilet.

Bear with me here, I’m going to be a little bit technical.

The "dynamics" of a corner toilet almost ensure that it will be 15" away from any obstacle at the "center of the bowl" where the measurement would be taken. But since the opening will ONLY be 12" from the side wall, it can never be replaced with a conventional toilet unless the pipe is shifted. And, there's usually a cabinet next to it which would interfere with the leg room.

The Best corner toilet installation diagram

Image: signaturehardware.com

In other words, once you decide on a triangle toilet, it will be challenging to switch back to normal ones.

Sounds a bit tricky, I know, but hey, beggars can’t be choosers. And since you have limited options, why not make the most out of it? Under this belief, I quickly dive into the market and search the best corner toilet.

Which One Is Better?

American Standard Cadet-3 IS OUR #1 Triangle TOILET CHOICE 

So which one do I like more?

If I had to choose then it would be the AS 270BD001.020 Cadet 3 toilet.

I have tested and sat on this amazing toilet so many times. You can enjoy the freedom when it comes to dumping an enormous weight while saving a lot of space in your bathroom.

Make sure to check out our guide on the best overall toilets for 2018.

Good luck. Stay clean. Be white.